Transfert de polluants organiques persistants vers l'œuf de consommation : état des lieux, modalités et facteurs de risques

Transfer of persistent organic pollutants into eggs: current situation, modalities and risk factors The transfer modalities of persistent organic pollutants (POPs) into eggs were studied in a research program CAS DAR. At first, the sanitary quality of eggs produced in France was established with regard to some POPs and the risk factors in farms were identified. Secondly, all steps of the evaluation of risk transfer of these contaminants into eggs were approached, by generating original data about 1) exposure level of hens, 2) contaminant bioavailability according to properties of the POP sources and 3) transfer level into eggs, of absorbed contaminants, which depends on molecule and animal characteristics. Finally, a modeling approach of transfer was introduced, based on the data integration, in order to evaluate the egg contamination according to exposure and physiological characteristics of hens.